Vibrational Spectroscopy of Lithium Manganese Spinel Oxides

被引：31

作者：

Julien, C. ^{[1
]}

Rougier, A. ^{[2
]}

Haro-Poniatowski, E. ^{[1
]}

Nazri, G. A. ^{[2
]}

机构：

[1] Univ Paris 06, Lab Milieux Desordonnes & Heterogenes, F-75252 Paris, France

[2] Gen Motors R&D Ctr, Phys & Phys Chem Dept, Warren, MI 48090 USA

来源：

MOLECULAR CRYSTALS AND LIQUID CRYSTALS SCIENCE AND TECHNOLOGY SECTION A-MOLECULAR CRYSTALS AND LIQUID CRYSTALS | 1998年 / 311卷

关键词：

lithium manganese oxide; vibrational spectroscopy; lithium batteries;

D O I：

10.1080/10587259808042370

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

Lithiated spinel manganese oxides with various amounts of lithium have been prepared through solid-state reaction and electrochemical intercalation and deintercalation. Structures of the LixMn2O4 samples with 0.3 <= x <= 1.2 are studied using X-ray diffraction and Rietveld refinement techniques. We report vibrational spectra of lithiated manganese oxides as a function of lithium concentration. The spectra of lithiated spinel manganese oxides have been analyzed on the basis of LiO4 tetrahedra and MnO6 octahedra when Li/Mn <= 0.5, and LiO4, LiO6, and MnO6 structural units when Li/Mn>0.5. Electrochemical performances of lithium manganese oxide are also studied.

引用

页码：81 / 87

页数：7

共 10 条

[1] DETERMINATION OF THERMODYNAMIC, KINETIC AND INTERFACIAL PROPERTIES FOR THE LI//LIXMN2O4 SYSTEM BY ELECTROCHEMICAL TECHNIQUES [J].